Sergio Catanzariti, Director of Network Architecture at Orange, tells Martyn Warwick that the ISG has achieved much over the past nine months. The reason for the speed and effectiveness is that, in this great technical leap forward, it is the telcos who are in the driving seat, not - as so often in the past - the technology vendors. The objective of the entire effort, he says, is business model transformation: "How do we monetise the network as a service?